CVE-2022-49732 (GCVE-0-2022-49732)

Vulnerability from cvelistv5 – Published: 2025-02-26 14:57 – Updated: 2026-05-11 19:05
VLAI
Title
sock: redo the psock vs ULP protection check
Summary
In the Linux kernel, the following vulnerability has been resolved: sock: redo the psock vs ULP protection check Commit 8a59f9d1e3d4 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()") has moved the inet_csk_has_ulp(sk) check from sk_psock_init() to the new tcp_bpf_update_proto() function. I'm guessing that this was done to allow creating psocks for non-inet sockets. Unfortunately the destruction path for psock includes the ULP unwind, so we need to fail the sk_psock_init() itself. Otherwise if ULP is already present we'll notice that later, and call tcp_update_ulp() with the sk_proto of the ULP itself, which will most likely result in the ULP looping its callbacks.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8a59f9d1e3d4340659fdfee8879dc09a6f2546e1 , < 72fa0f65b56605b8a9ae9fba2082f2123f7fe017 (git)
Affected: 8a59f9d1e3d4340659fdfee8879dc09a6f2546e1 , < 922309e50befb0cfa5cb65e4989b7706d6578846 (git)
Affected: 8a59f9d1e3d4340659fdfee8879dc09a6f2546e1 , < e34a07c0ae3906f97eb18df50902e2a01c1015b6 (git)
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Linux Linux Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.15.51 , ≤ 5.15.* (semver)
Unaffected: 5.18.8 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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}



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